Maxim Integrated DS1985
16Kb Add-Only iButton
| Part No. | DS1985 |
|---|---|
| Datasheet | DS1985 Download |
| Manufacturer |  Maxim Integrated |
| Description | 16Kb Add-Only iButton |
| Buy | Stock & Price |
FEATURES
● 16384 bits Electrically Programmable Read Only Memory (EPROM) communicates with the economy of one signal plus ground● EPROM partitioned into 64 256-bit pages for randomly accessing packetized data records
● Each memory page can be permanently write protected to prevent tampering
● Device is an “add only” memory where additional data can be programmed into EPROM without disturbing existing data
● Architecture allows software to patch data by superseding an old page in favor of a newly programmed page
● Reduces control, address, data, power, and programming signals to a single data pin
● 8-bit family code specifies DS1985 communications requirements to reader
● Reads over a wide voltage range of 2.8V to 6.0V from -40°C to +85°C; programs at 11.5V to 12.0V from -40°C to +85°C F3 MicroCan F5 MicroCan DS1985 16Kb Add-Only iButton COMMON iButton
FEATURES
● Unique, factory-lasered and tested 64-bit registration number (8-bit
